Dubois, Town Of, WY
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About Dubois, Town Of
Dubois, Town Of serves about 1,822 people through 654 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Fremont County, Wyoming. EPA system ID: WY5600177; phone on file: 307-455-2345. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Dubois, Town Of is 4.2 ppb across 9 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2020 | 0.95 ppb |
| 2017 | 0.66 ppb |
| 2016 | 4.2 ppb |
Where this result ranks
Of the 311 Wyoming systems with a lead result, the median latest reading is 1 ppb; 0 are over 15 ppb right now and 16 have gone over at some point. Dubois, Town Of's reported as 0 (not detected) sits at the 28th percentile in Wyoming and the 30th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
20 other systems share Fremont County; 9 of them have a higher latest lead result than Dubois, Town Of. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Riverton, City Of | 10,330 | 3 ppb |
| Lander, City Of | 7,615 | 0 (not detected) |
| Shoshoni, Town Of | 515 | 4 ppb |
| Hudson, Town Of | 460 | 0 (not detected) |
| Gardens North Homeowners Association | 300 | 1 ppb |
| Pavillion, Town Of | 230 | 0 (not detected) |
| Sunridge Estates | 220 | 1 ppb |
| B&K Mobile Home Park | 200 | 1 ppb |
| Jade Mhc | 200 | 0 (not detected) |
| Mountain View Acres | 165 | 0 (not detected) |
Next steps for Dubois, WY
Look up your address in Dubois, Town Of's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Dubois, Town Of whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1400 ppb (copper action level 1,300 ppb).
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. The lead result guide covers how utilities pick the homes they sample. Small systems behave differently: why small systems go over more often.